Financial crisis and cuts to the welfare system have driven people to UK food banks. About 500,000 are estimated to have ...

US President Donald Trump has expressed confidence that Washington can successfully negotiate the end of the Ukraine conflict "this week," White House Press Secretary Karoline Leavitt said Saturday.

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南方科技大学等在高温超导领域获重大突破研究报道了在双层镍酸盐外延薄膜中高于麦克米伦极限（40K）的环境压力下的超导。利用巨大的氧化原子层外延生长法（GOALL-Epitaxy），在SrLaAlO4基底上生长了三单位晶胞（3UC）厚的La2.85Pr0 ...